*{
    margin: 0;
    padding: 0;
}
html,body{
    width: 100%;
    height: 100%;
    background-color: #DEDEDE;
    font-size: 16px;
    overflow: auto;
}
#header {
    height: 60px;
    position: relative;
    background-color: #333333;
}

#task-logo{
    padding: 6px 50px;
}
.header-nav{
    position: absolute;
    top:0;
    right: 25px;
}
#header-ul li{
    float: left;
    margin-left: 25px;
    line-height: 60px;
}
#header-ul a{
    color: #FFFFFF;
    font-weight: bold;
}
.task-article{
    margin: 25px;
    background-color: #FFFFFF;
    padding: 25px;
}
.h2{
    margin-top: 10px;
}
.h3{
    margin: 20px 0;
    color: #DEDEDE;
}
.article-info{
    font-size: 14px;
    color: #DEDEDE;
    margin:20px 0;
}
.article-p{
    text-indent: 2em;
    line-height: 1.8em;
    margin: 20px 0;
}
.article-ul{
    list-style: none;
}
.article-ul li{
    margin: 20px;
}
.task-article figure{
    width: 100px;
    padding: 10px;
    border: 1px solid #dddddd;
    -webkit-margin-before: 1em;
    -webkit-margin-after: 1em;
    -webkit-margin-start: 40px;
    -webkit-margin-end: 40px;
}
.task-article figcaption{
    margin-bottom: 10px;
    text-align: center;
}
figure img{
    width: 100%;
}

#article-ol{
    margin: 0 0 20px 50px;
}
#article-ol li{
    font-weight: bold;
    padding: 5px 0;
}
#article-table{
    width: 100%;
    font-weight: bold;
    border-collapse: collapse
}
#article-table thead{
    background-color: #000000;
    color: #FFFFFF;
}
#article-table tr,#article-table td{
    border: 1px solid #ccc;
}
#task-h2{
    padding-left: 30px;
    border-left: 5px solid #cccccc;
}

.submit{
    display: inline-block;
    width: 100%;
    height: 40px;
    border: 0;
    border-radius: 10px;
    font-size: 20px;
    color: #FFFFFF;
    background-color: #3030D3;
}